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Finding the Fourth Proportional to 519,587.40, 779,654.88 and 368,758.92

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Solution

The fourth proportional to 519,587.40, 779,654.88 and 368,758.92 is: 553,332.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,587.40 : 779,654.88 = 368,758.92 : x
  2. Step 2: Convert to fraction form
    519,587.40/779,654.88 = 368,758.92/x
  3. Step 3: Cross multiply
    519,587.40x = 779,654.88 × 368,758.92
  4. Step 4: Simplify right side
    519,587.40x = 287,504,691,521.53
  5. Step 5: Solve for x
    x = 287,504,691,521.53/519,587.40
  6. Step 6: Final answer
    x = 553,332.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.